OEM & custom glass

Custom glass parts, from material made inside the group

The glass is melted at the group’s own plant in Japan. The forming happens in the group as well.

Send us a drawing. If you have no drawing, tell us what the part must do.

Beaker spouts being formed under burner flame at the group's Koga Plant

Capability

What we can do

H-32 borosilicate glass tubing supplied as raw material

01 / TUBING

Glass tubing

Drawn at the group’s own plant in Japan and supplied by length. Diameter and wall thickness to your specification.

We draw small-diameter tubing. For larger hollow shapes we use blow forming instead.

Erlenmeyer flask blank, the body already formed and annealed

02 / BLANKS

Blanks & part-finished pieces

Pieces that are cut, flame-smoothed at the edge, or partly formed, supplied for you to finish. This is useful when you want to keep the last forming step in your own factory.

See the 33 blank types →

The melting furnace at the group's Koga Plant

03 / CONSISTENCY

One composition, one source

The melting and the forming happen inside the same group. So the composition and the dimensions stay the same from lot to lot, over long programmes.

Forming methods

Four ways we form glass

If you already know which method your part needs, tell us. If not, describe the part and we will say which one applies.

01 / MACHINE BLOWING

Machine blowing

Hollow parts in volume. Bottles, flasks, and tubes with a wide body.

02 / HAND BLOWING

Hand blowing

Large, irregular or one-off shapes. Small lots and prototypes.

03 / HAND PRESSING

Hand pressing

Flat parts. Discs, plates, sight glass blanks, covers.

04 / TUBE DRAWING

Tube drawing

Small-diameter tube and rod.

Process

How an inquiry becomes a supply programme

Tell us the requirement

A drawing is best. A sketch, a photograph of an existing part, or a description of what the part must do is enough to start.

Feasibility and indicative cost

We tell you whether the shape can be made in borosilicate glass, at what tolerance, and what the volume means for the price. If it cannot be made, we say so at this stage.

Prototype

A sample piece for you to test in the real application, with the dimensions checked against the drawing.

Production and scheduled supply

Repeat production on a schedule, with inspection certificates and English shipping documents when you need them.

Track record

Three kinds of problem we have solved

The full case studies are published on our Japanese site. In outline:

CASE 01

A filtration funnel for a laboratory equipment maker

An existing shape was re-engineered so it could be produced reliably at the volume the customer needed.

CASE 02

A beaker used as retail packaging

Laboratory glassware adopted as the container for a food product, where the look of the labware was the point.

CASE 03

A joined-tube vessel for a distiller

Tubes of different diameters were joined to produce a vessel that could not be formed in one piece.

Read the full case studies (Japanese) →

Request an export quotation

Send us the drawing or a description of the part, your annual volume, and your destination. We will send a quotation and confirm the lead time. We can issue inspection certificates and shipping documents in English.

HARIO SCIENCE CO., LTD.
9-3 Nihonbashi-Tomizawacho, Chuo-ku, Tokyo 103-0006, Japan
TEL +81-3-6861-5602  /  FAX +81-3-6861-5603